Commit c9974ad4 authored Mar 11, 2014 by Eric W. Biederman Committed by David S. Miller Mar 12, 2014

gianfar: Carefully free skbs in functions called by netpoll.



netpoll can call functions in hard irq context that are ordinarily
called in lesser contexts.  For those functions use dev_kfree_skb_any
and dev_consume_skb_any so skbs are freed safely from hard irq
context.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d8ec2c02

drivers/net/ethernet/freescale/gianfar.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2192,13 +2192,13 @@ static int gfar_start_xmit(struct sk_buff skb, struct net_device dev)
		skb_new = skb_realloc_headroom(skb, fcb_len);
		if (!skb_new) {
		dev->stats.tx_errors++;
		kfree_skb(skb);
		dev_kfree_skb_any(skb);
		return NETDEV_TX_OK;
		}

		if (skb->sk)
		skb_set_owner_w(skb_new, skb->sk);
		consume_skb(skb);
		dev_consume_skb_any(skb);
		skb = skb_new;
		}